Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations only declare readOnlyHint=false, openWorldHint=true, idempotentHint=false and destructiveHint=false; the description goes well beyond that by disclosing real cost ($25 enterprise audit stage, $28.12 USDC per call via x402) and, importantly, that later stages are skipped when an earlier stage finds a blocking problem — a partial-execution behavior the agent cannot infer from annotations. It stops short of saying whether you are still charged when the ladder short-circuits, and there is no explicit statement that this is a paid, paid-in-USDC-gated call before invocation.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

Two dense sentences plus a price parenthetical, sequenced in execution order with the conditional clause front-loaded where it matters. There is no filler, though the compressed phrasing ('MASSAT', 'run evidence') costs some comprehension relative to its brevity.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a multi-stage, non-idempotent, paid orchestration with no output schema, the description covers ordering and gating but omits what the caller actually receives (individual stage reports? one notarized bundle?), what happens when a blocking problem is found (early return, partial result, charge), and what 'notarized' means as an artifact. These are material gaps for a tool of this complexity, though the cost and conditional-flow disclosures keep it from being inadequate.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 100% for the single 'task' parameter, so the baseline would be 3. However, the description introduces a second apparent input — 'run evidence' that the caller must 'supply' to trigger process attestation — which has no corresponding property in the schema at all, leaving the agent unable to tell how to activate that stage or whether it belongs in 'task'. The description also never mentions 'task' itself.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

The description names the concrete stages (single-agent MASSAT audit, injection test, enterprise audit, notarization, process attestation) and the gating order between them, which is enough to distinguish this bundle from siblings like security.enterprise-audit or security.injection-resilience. It is strong on what the bundle contains, but the phrase 'MASSAT audit' is never unpacked and the overall framing is workflow-shaped rather than a clean verb+resource statement.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

It gives conditional execution logic ('the $25 enterprise audit runs only if neither finds a blocking problem', 'Process attestation runs only if you supply run evidence'), which doubles as a usage precondition. What is missing is any explicit guidance about when to pick this ladder over bundle.massat-ladder, bundle.prehire-ladder, or the standalone security.* tools, so the agent must infer the choice.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.